Egbert gemmell



(No ModeL) R. GEMMELL.

SPINDLE BANDING AND BAND TIGHTENER FOR SPINNING MACHINES.v

Patentd 15111.18, 1887.

N. FETERS. Phola-Lflluogmpher, wmin lon. D. C.

IhviTnn STATES PATENT @Fincn.

ROBERT GEMMELL, on COLUMBUS, ONTARIO, CANADA.

SPlNDLE-BANDlNG AND BAND-TIGHTENER FOR SPINNING-MACHINES.

SPZE ICIFIC ATION forming part of Letters Patent No. 356,117, dated January 18, 1887.

(No model.)

To all whom it may concern.-

Be it known that I, ROBERT GEMMELL, a subject of the Queen of Great Britain, residing at Columbus, in thecounty of East Whitby, in the Province of Ontario, Canada, have invented certain new and useful Improvements in Spindle-Banding and Band-Tighteners for Spinning-Machines; and I hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, which form part of this specification.

My invention relates to machinery for spinning yarn; and it consists in the construction and the combination of parts, hereinafter par ticularly described and claimed.

In the drawings, Figure'l is an elevation of a portion of a spinning-frame, showing my improvement. Fig. 2 is a plan of the same. Figs. 3 and 4 are longitudinal and transverse sections, respectively, of my belt-tightener, parts being in elevation. Fig. 5 is an end elevation of an alternative belt-tightener.

A is the frame of an ordinary spinning-machine, and B is the cylinder or drum which conveys motion from the power to the spindles.

O are the pulleys, passing through which are the spindles c, which carry the bobbins. Instead of connecting each spindle with the cylinder 13, I provide a continuous or endless belt, D, which passes round all the pulleys precisely in the manner shown in Fig. 2that is, the belt is passed around a belt-tightener pulley, K, at one end of the machine, thence around a pulleyon the bobbin-spindle, thence to and around the drum, whose axis of rotation is at right angles to that of the bobbinspindle, then back to and around a pulley on a spindle alongside of the first spindle, and back to and around thedriving-drum, and

so on nntilthe last spindle of the series isreached, from whence the, belt passes to and around a belt-tightener pulley, G, at that end of the frame, and is then connected to the In Figs. 3 and 4 E is a box, hollowed in a dovetail manner and open at both ends. F is a box of dovetail shape, made to slide within the box E, but open at the bottom and closed at both ends, as shown in Fig. 3. The pulley G is set by means of a spindle, g,-in the top of the sliding box F. H is a nut rigidly fixed in the bottom of the box IE. Ihis nut H receives the screw h, which is turned by means of any handle, 72 the screw being allowed to pass freely through the end of the sliding box F, with a portion of the handle bearing against the outside of the box, and being prevented from screwing out of the box by the pinf, passed through the screw, it follows that the revolution of this screw h, engaging with the not or female screw -H, will cause the sliding box F to move to or fro within the box IE, carrying with it the pulley G, and thereby tightening or loosening the belt.

Fig. 5 shows an alternative form of belttightener. I is a solid dovetail block sliding within the block J. K is the pulley, attached by a spindle, 70, as before, to the block I. L is a yoke loosely pivoted to the spindle 7.: of the pulley K. To each of the ends of the yoke L are pivoted pawls Z, which engage with ratchet-teeth Z, which teeth form a part of the block J. Consequently, when the belt needs tightening, the sliding block I may be drawn out by means of a handle, 6, (or by other suitable means) and the pawls will fall into their suitable notches. rying the pulley K, the belt is thus tightened, while to loosen the belt it is merely necessary to raise the pawls.

"What Iclaim as my invention, and desire to secure by Letters Patent, is

The combination of the frame, the drum, the series of bobbinspindles provided with pulleys arranged opposite to the drum, with their axes of rotation at right angles to that of the drum, the stationary dovetailed box supported at one end of the frame, the sliding box carrying a pulley and adjustable in the dovetail of the stationarybox, pawls mounted on the sliding box and engaging with racks 'on the stationary box for holding the sliding box to its adjustment, a pulley at the opposite end of the frame, and an endless belt passed around both of said pulleys, and thence around the bobbin-spindle, pulleys, and drum, as described, for the purposes specified.

ROBERT GEMMELL.

IVitnesses: J. BALDWIN HANDS,

J. H. DENTON.

The block I car- 

